| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <amdblocks/mca.h> |
| #include <amdblocks/msr_zen.h> |
| #include <cpu/x86/msr.h> |
| #include <acpi/acpi.h> |
| #include <console/console.h> |
| #include <arch/bert_storage.h> |
| #include <cper.h> |
| #include <types.h> |
| #include "mca_common_defs.h" |
| |
| /* MISC4 is the last used register in the MCAX banks of Picasso */ |
| #define MCAX_USED_REGISTERS_PER_BANK (MCAX_MISC4_OFFSET + 1) |
| |
| static inline size_t mca_report_size_reqd(void) |
| { |
| size_t size; |
| |
| size = sizeof(acpi_generic_error_status_t); |
| |
| size += sizeof(acpi_hest_generic_data_v300_t); |
| size += sizeof(cper_proc_generic_error_section_t); |
| |
| size += sizeof(acpi_hest_generic_data_v300_t); |
| size += sizeof(cper_ia32x64_proc_error_section_t); |
| |
| /* Check Error */ |
| size += cper_ia32x64_check_sz(); |
| |
| /* Context of MCG_CAP, MCG_STAT, MCG_CTL */ |
| size += cper_ia32x64_ctx_sz_bytype(CPER_IA32X64_CTX_MSR, 3); |
| |
| /* Context of CTL, STATUS, ADDR, MISC0, CONFIG, IPID, SYND, RESERVED, DESTAT, DEADDR, |
| MISC1, MISC2, MISC3, MISC4 */ |
| size += cper_ia32x64_ctx_sz_bytype(CPER_IA32X64_CTX_MSR, MCAX_USED_REGISTERS_PER_BANK); |
| |
| /* Context of CTL_MASK */ |
| size += cper_ia32x64_ctx_sz_bytype(CPER_IA32X64_CTX_MSR, 1); |
| |
| return size; |
| } |
| |
| /* Convert an error reported by an MCA bank into BERT information to be reported |
| * by the OS. The ACPI driver doesn't recognize/parse the IA32/X64 structure, |
| * which is the best method to report MSR context. As a result, add two |
| * structures: A "processor generic error" that is parsed, and an IA32/X64 one |
| * to capture complete information. |
| */ |
| void build_bert_mca_error(struct mca_bank_status *mci) |
| { |
| acpi_generic_error_status_t *status; |
| acpi_hest_generic_data_v300_t *gen_entry; |
| acpi_hest_generic_data_v300_t *x86_entry; |
| cper_proc_generic_error_section_t *gen_sec; |
| cper_ia32x64_proc_error_section_t *x86_sec; |
| cper_ia32x64_proc_error_info_t *chk; |
| cper_ia32x64_context_t *ctx; |
| |
| if (mca_report_size_reqd() > bert_storage_remaining()) |
| goto failed; |
| |
| status = bert_new_event(&CPER_SEC_PROC_GENERIC_GUID); |
| if (!status) |
| goto failed; |
| |
| gen_entry = acpi_hest_generic_data3(status); |
| gen_sec = section_of_acpientry(gen_sec, gen_entry); |
| |
| fill_generic_section(gen_sec, mci); |
| |
| x86_entry = bert_append_ia32x64(status); |
| x86_sec = section_of_acpientry(x86_sec, x86_entry); |
| |
| chk = new_cper_ia32x64_check(status, x86_sec, error_to_chktype(mci)); |
| if (!chk) |
| goto failed; |
| |
| ctx = cper_new_ia32x64_context_msr(status, x86_sec, IA32_MCG_CAP, 3); |
| if (!ctx) |
| goto failed; |
| ctx = cper_new_ia32x64_context_msr(status, x86_sec, MCAX_CTL_MSR(mci->bank), |
| MCAX_USED_REGISTERS_PER_BANK); |
| if (!ctx) |
| goto failed; |
| ctx = cper_new_ia32x64_context_msr(status, x86_sec, MCA_CTL_MASK_MSR(mci->bank), 1); |
| if (!ctx) |
| goto failed; |
| |
| return; |
| |
| failed: |
| /* We're here because of a hardware error, don't break something else */ |
| printk(BIOS_ERR, "Error: Not enough room in BERT region for Machine Check error\n"); |
| } |